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Device and method for realizing corrosion communication of thin salt layer

A salt layer and dissolution technology, applied in earth-moving drilling, fluid production, wellbore/well components, etc., can solve the problems of high cost, easy formation of sludge accumulation, leakage corrosion, etc., to improve the success rate and save costs , the effect of high concentration

Inactive Publication Date: 2013-05-01
陈建明 +1
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  • Application Information

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Problems solved by technology

[0004] In order to make full use of these thin ore layers, according to the above principles, the idea of ​​dissolution and connection of thin salt layers has been produced; for the current thin salt layer dissolution and connection mining technology (refer to figure 1 ), the production device is a three-pipe structure consisting of cementing pipe 1, circulation pipe 2 and center pipe 3, which has the disadvantages of high cost, easy formation of sludge accumulation and leakage corrosion at the bottom of the production well

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  • Device and method for realizing corrosion communication of thin salt layer
  • Device and method for realizing corrosion communication of thin salt layer
  • Device and method for realizing corrosion communication of thin salt layer

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] A device for achieving dissolution communication of a thin salt layer, comprising a cementing pipe, a central pipe and a cement plug, the cement plug is located in the space in the well below the floor of the ore seam, and is used to fill the space in the well, and the space in the well is connected to the space in the well The floor of the mine seam is connected; the cementing pipe and the center pipe are installed in the production well above the floor of the mine seam, both of which are hollow structures, and the center pipe is arranged inside the cementing pipe; the lower part of the cementing pipe The ports are fixed on the top plate of the mine seam, the distance between the lower end port of the central pipe ...

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Abstract

The invention discloses a device and a method for realizing corrosion communication of a thin salt layer. Three pipes in the prior art are reduced to two pipes by the method and the device, so that the exploitation cost is greatly saved. An upper corrosion bottom angle formed during exploitation is reduced to 1 to 2 degrees by the device, so that the corrosion diameter of a mineral layer is increased, the success rate of communication of two wells is improved, and the communication rate of the wells is up to 100 percent.

Description

technical field [0001] The invention relates to the mining technology of the halogen sedimentary mineral layer and the modern lacustrine bottom plate solid mineral layer, in particular to a device and method for realizing the corrosion connection of the thin salt layer. Background technique [0002] The rock salt hydraulic fracturing method that emerged in China in the 1970s was introduced from oil extraction technology. At that time, the objective law of fracturing was not grasped, and accidents were caused during fracturing construction and mining, which resulted in setbacks. And because the single-well water-soluble mining at that time was introduced from the results of drilling water-soluble experiments in low-grade, thick ore seams in Yunnan Province. The diameter of the dissolution cavity is 100 meters, and the height of the tank needs to be 8-12 meters. The thickness of the ore layer in the halogen sedimentary deposit formed by inland lacustrine facies is much small...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/28E21B43/17E21B21/16
Inventor 陈建明陈镇鑫
Owner 陈建明